Down-hole hammer rock crushing construction method

The invention discloses a down-the-hole hammer rock crushing construction method, which belongs to the technical field of building construction, and comprises the following steps: measuring and placing points, placing a drilling machine in place, putting down a pile casing, drilling and forming a ho...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN YUNDING, LIU HONGDA, ZHAO JINSHAN, XU PANRONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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